Question

Find the value of a , b , c and d in figure :-

Give me a proper answer

with full explanation

If a answer is correct I will surely mark you a BRAINLIEST answer

Give me a proper answer
Give me A proper answer
​

Answer 1

Step-by-step explanation:

1. sum of all angle is 180
2. angle A + angle D + angle C =180
3. 30°+ angle D + 40 = 180
4. 70° + angle D= 180
5. angle D= 180-70
6. angle D=110°

Answer 2

Answer:

a= angle DCA= 40° (alternate interior angles)

Similarly, b= angle BCA= 30°

angle DCB + d= 180° (co. int. angles)

Thus, d = 110°

c=d= 110° (opposite angles of parallelogram)